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Drilling
Maintain system efficiency with water-based drilling fluid protection

Drilling Protection

Drilling fluids are most widely used in well drilling activities. Compared to other drilling fluids, water-based systems are most prone to microbial contamination. DuPont Microbial Control’s solutions help maintain system efficiency by protecting fluids from bacteria and enzymes that can cause fluid degradation.

Water treatment microbiocides help minimize bacteria, algae and biofilm formation – aiding in the prevention of microbial induced corrosion (MIC), mitigation of polymer breakdown and reducing well and reservoir souring.

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Product Name

Active Ingredient

Features & Benefits

Glutaraldehyde

  • Rapid microbial control following drilling fluid preparation
  • Moderate preservation and high-temperature performance

Glutaraldehyde
N-alkyl-N,N-dimethyl-N-benzylammonium chloride (ADBAC)

  • Synergistic blends of glutaraldehyde and ADBAC quat
  • Enhanced rapid control and biofilm penetration properties

AQUCAR™ PS 25 Water Treatment Microbiocide 
AQUCAR™ PS 75 Water Treatment Microbiocide

Tetrakis (hydroxymethyl) phosphonium sulfate (THPS)

  • Rapid microbial control following drilling fluid preparation
  • Moderate preservation and high-temperature performance

2,2-dibromo-3-nitrilopropionamide (DBNPA)

  • Extremely rapid microbial control following drilling fluid preparation
  • Prevents loss of drilling fluid physical properties due to microbial degradation
  • Eliminates transfer of microbes from the top-side to downhole environment
  • Highly effective when used with a preservative chemistry

Tris(hydroxymethyl)nitromethane (THNM) 
4,4-dimethyloxazolidine (DMO) 
1-(3-chloroallyl)-3,5,7-triaza-1-azoniaadamantane chloride (CTAC)

  • Long-term protection of drilling fluids maintained in storage pits or tanks
  • Protects recovered fluid following numerous cycles of drilling activities
  • Highly effective in high-temperature environments